Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4759612 | Twisted nematic type liquid crystal display device having a color polarizer to provide an achromatic or colorless background | Hideaki Nakatsuka, Mikio Kanazaki, Yasuhiko Kando, Shinji Hasegawa | 1988-07-26 |